930 Porsche transmission help

We are looking at converting the LS1 Corvair to a Hydraulic clutch setup. I can't seem to find any info on such a project , although I am sure it has been done considering the use of the transmission in GT 40 kit cars and sandrails.

Any ideas?

Thanks!

JM

Charlie Friend has a 930 transaxle in his ORR Corvair, but I don't know about the clutch setup.

That thing has PLATES on it? Road legal? Wow.

I have done a lot of reading on charlies car, it's a cable setup. I think I found a solution thou.

Thanks

The GT40 and sandrails are starting to use Audi transaxles (same as the 944's) and those are hydraulic.

Well if its a cable operated, can't you just maintain the clutch fork and actuate it with an external slave cylinder?

911s of similar vintage use a hydraulic setup. It's been a few years since I touched a porsche so I don't recall if they're interchangeable or not.

Big help, I know.

the audi transaxles are the same as the 944's?

There are thoses who call me...Ross. wrote: Well if its a cable operated, can't you just maintain the clutch fork and actuate it with an external slave cylinder?

You might find the ratio on the clutch fork is different.

We did this with a 4A-GE Toyota Starlet. Used the Starlet cable to pull the T50 clutch fork. The ratio was quite a bit different, the clutch pedal was very stiff and more like an on/off switch than a proper clutch.

It took some getting used to. We finally converted to a hydraulic clutch when the pedal broke.

Shawn

You'd need to use the same size cylinder at the master and at the slave. Then its linear movement is 1:1 just like a cable. The mechanical advantage is still at the clutch fork. Nothing really should change with regards to pedal feel. Its just a thought.

There are those who call me...Ross. wrote: You'd need to use the same size cylinder at the master and at the slave. Then its linear movement is 1:1 just like a cable. The mechanical advantage is still at the clutch fork. Nothing really should change with regards to pedal feel. Its just a thought.

nice tips..

mad_machine wrote: the audi transaxles are the same as the 944's?

Yep, more or less.

Some linkage:

016 was used in the Audi 5000, 944, 924S and later 924's.

http://www.lambolounge.com/chassis/Transmission/5000/5000.asp

The newer version is the 01E and was used behind the Audi V8's, etc.

http://www.elektro.com/audi/01e/

And then there is the Audi 01X which is the newest, strongest, etc but isn't repairable at the moment and finding a FWD only version of either the 01E and 01X looks to be pretty tricky.

Apparently the Boxster uses a variation of the 016, the 012. It isn't as strong, but opens interesting possibilities in my head for cheap/easy engine swaps.

Anyway, sorry to hijack the thread so badly.

this brings up a related question.. as I want to use a porsche transaxle in a car.. is the 968 tranny availible as a 6 speed?

Yep:

http://en.wikipedia.org/wiki/Porsche_968